| 摘要 |
For an assembly comprising a shaft (106) and an article (104) mounted on the shaft, a device (116) mounted on the shaft prevents movement of the article (104) along the shaft towards the device. The device preferably comprises a ring (116). To protect the ring from accidential blows which may dislodge it, the assembly includes a cap (120). To simplify manufacture of the ring, the projections of "noses" (118) are provided separately, preferably as part of the cap. |
